Refer to Exhibit 13-1. To find the relationship between high school GPA rank and rank on a popularity measure
a.
Pearson’s r
c.
phi coefficient
b.
Spearman rho
B
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Children should participate as much as possible in the routines of mealtimes
Indicate whether the statement is true or false
Which of the following illustrates the null hypothesis?
a. There is no significant difference in the achievement of groups taught by Method A and Method B. b. The difference in the effects on achievement of Method A and Method B equals zero. c. There is no relationship between the method of teaching and achievement. d. All of these are true.
How many hours elapse between high and low tides?
a. 6 b. 8 c. 10 d. 12
Following, which most accurately reflects experts' estimates of the number of homeless children in the United States?
a. Up to 100,000 students b. Up to a quarter of a million students c. Up to a million and a half students d. Up to five million students